1. Purchase on the merchant platform: First, you need to open a securities account. You can choose to open an account online. After opening an account successfully, you can directly purchase the CSI 300 Index Fund. The Shanghai and Shenzhen 300 index funds purchased on the platform are usually ETF funds, and they need to pay transaction fees when purchasing, generally within three ten thousandths.

2. Third-party platform purchase: Third-party platforms such as Alipay and JD Finance can directly invest in ETF funds. The subscription fee for third-party platforms to purchase ETF funds will be preferential, generally 1 discount.

3. Purchase by the fund company in official website: You can also get a discount on the subscription rate by purchasing the fund directly from the fund company in official website, with a general discount of 1%-1.5%.

Extended data

The Shanghai and Shenzhen 300 Index takes scale and liquidity as two basic criteria for sample selection, which gives greater weight to liquidity, in line with the characteristics of the index positioning as a transactional index.

After sorting listed companies, they are selected, and detailed selection conditions are also stipulated. For example, the listing of new shares (except a few large-cap stocks) will not enter the index soon. Generally speaking, stocks listed after a quarter are likely to be selected as sample stocks of the index; It does not include stocks suspended from listing, ST stocks, stocks with abnormal operating conditions or serious financial losses, and stocks with large stock price fluctuations.

Therefore, the 300 index reflects the comprehensive changes of the stock prices of representative stocks with strong liquidity and large scale, which can provide investors with authoritative investment direction, facilitate investors to track and combine, and ensure the stability, representativeness and operability of the index.

Baidu Encyclopedia-Shanghai and Shenzhen 300 Index